Sign in to follow this  
Followers 0
Koala426

2002 yamaha wr426 carburator and pilot jet adjustment?

3 posts in this topic

ImageUploadedByThumper Talk1369930898.298338.jpgImageUploadedByThumper Talk1369930943.826293.jpg

If some one can post some pictures please!!!!!!

By bike is backfiring a lot!!! Sound like a feed her with beans!!! Lol

Share this post


Link to post
Share on other sites

Some related reading:

Regarding the causes of decel backfire: http://www.thumpertalk.com/forum/showthread.php?p=3710599#post3710599

Regarding the pilot adjustment:

http://www.thumpertalk.com/forum/showthread.php?t=696672

http://www.thumperfaq.com/jetting.htm#PJ

http://www.thumpertalk.com/forum/showthread.php?t=327405

Yours appears to have a pilot fuel screw with a flexible extension on it (item you point to in the second picture), so that makes it quite a bit simpler to access. The black knob in the first pic is the idle speed adjustment only.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0